Question 1: What is the study of firearms and ammunition called?
- A. Forensic Ballistics
- B. Forensic Toxicology
- C. Forensic Anthropology
- D. Forensic Odontology
Answer: A. Forensic Ballistics
Explanation: Forensic ballistics is the study of firearms and ammunition, including the analysis of bullets, cartridge cases, gunshot residue, and other related evidence. It plays a crucial role in criminal investigations involving firearm-related incidents.
Question 2: What is the term used to describe the unique markings left on a bullet or cartridge case by the firearm?
- A. Rifling
- B. Ballistic Fingerprint
- C. Striation
- D. Breech Face Marks
Answer: B. Ballistic Fingerprint
Explanation: The unique markings left on a bullet or cartridge case by the firearm are collectively referred to as the “ballistic fingerprint.” These markings are created by the barrel, breech face, and other components of the firearm and are used for identification and comparison purposes.
Question 3: What is the term used to describe the study of the behavior of a firearm and its components during firing?
- A. Internal Ballistics
- B. External Ballistics
- C. Terminal Ballistics
- D. Forensic Ballistics
Answer: A. Internal Ballistics
Explanation: Internal ballistics is the study of the behavior of a firearm and its components during firing, including the ignition of the propellant, the dynamics of the bullet or projectile inside the barrel, and the pressure and temperature changes that occur.
Question 4: What is the term used to describe the study of the interaction between a projectile and its target?
- A. Internal Ballistics
- B. External Ballistics
- C. Terminal Ballistics
- D. Forensic Ballistics
Answer: C. Terminal Ballistics
Explanation: Terminal ballistics is the study of the interaction between a projectile and its target, including the behavior of the projectile upon impact, the damage caused, and the effects on the target material.
Question 5: What is the primary method used to determine the distance from which a firearm was discharged?
- A. Bullet Trajectory Analysis
- B. Gunshot Residue Analysis
- C. Ballistic Fingerprint Comparison
- D. Propellant Analysis
Answer: B. Gunshot Residue Analysis
Explanation: Gunshot residue analysis is the primary method used to determine the distance from which a firearm was discharged. The pattern and distribution of gunshot residue particles on clothing or surfaces can provide valuable information about the shooting distance.
Question 6: What is the term used to describe the unique markings left on a bullet by the rifling in the barrel of a firearm?
- A. Striations
- B. Breech Face Marks
- C. Ejector Marks
- D. Extractor Marks
Answer: A. Striations
Explanation: Striations are the unique markings left on a bullet by the rifling in the barrel of a firearm. These markings are created as the bullet travels through the rifled barrel and are used for ballistic comparison and identification purposes.
Question 7: What is the term used to describe the analysis of the chemical composition of gunshot residue?
- A. Trace Evidence Analysis
- B. Ballistic Fingerprint Analysis
- C. Inorganic Gunshot Residue Analysis
- D. Organic Gunshot Residue Analysis
Answer: C. Inorganic Gunshot Residue Analysis
Explanation: Inorganic gunshot residue analysis is the term used to describe the analysis of the chemical composition of gunshot residue particles. This analysis typically involves techniques such as scanning electron microscopy and energy-dispersive X-ray spectroscopy to identify the presence of elements like lead, barium, and antimony, which are common components of gunshot residue.
Question 8: What is the primary technique used to compare and identify bullets or cartridge cases to a specific firearm?
- A. Rifling Pattern Analysis
- B. Ballistic Coefficient Calculation
- C. Microscopic Comparison
- D. Gunshot Residue Composition Analysis
Answer: C. Microscopic Comparison
Explanation: Microscopic comparison is the primary technique used to compare and identify bullets or cartridge cases to a specific firearm. This involves the detailed examination and comparison of the unique markings (ballistic fingerprints) on the evidence samples with test-fired samples from a suspect firearm using a comparison microscope.
Question 9: What is the term used to describe the study of the behavior of projectiles in the air, including their trajectory and impact?
- A. Internal Ballistics
- B. External Ballistics
- C. Terminal Ballistics
- D. Forensic Ballistics
Answer: B. External Ballistics
Explanation: External ballistics is the study of the behavior of projectiles in the air, including their trajectory, velocity, and impact characteristics. This branch of ballistics is crucial for reconstructing shooting incidents and understanding the flight path of bullets.
Question 10: What is the term used to describe the analysis of the gunpowder residue left behind after a firearm is discharged?
- A. Ballistic Fingerprint Analysis
- B. Striation Analysis
- C. Propellant Analysis
- D. Primer Residue Analysis
Answer: C. Propellant Analysis
Explanation: Propellant analysis is the term used to describe the analysis of the gunpowder residue left behind after a firearm is discharged. This analysis can provide information about the type of propellant used, its chemical composition, and potentially link it to a specific ammunition source.